A girl stepped on my foot with a stiletto and now my last three toes have no feeling in them and across my foot. What can I do for this?

See a podiatrist. A nerve may have been affected; however, you want to rule out other injury to the area including the capsules, joints and bones. Any injury to these areas could cause swelling that can compress/pinch the nerve and cause numbness.
See a podiatris. Need to see a podiatrist to make sure you have not fractures. I highly doubt that she could have damaged your nerves. You will need x-rays and further evaluation.